Miter-box.



No. 760,892. PATBNTBD MAY 24, 1904.

J. J. MARRS. MITER BOX.

APPLICATION FILED 0013.20] 1903.-

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THE NORRIS PETERS w, who're-undo WASHINGTON. o. c.

No. 760,892. PATENTBDI MAY 24, 1904.-

J.- J. MARRS.

MITBR BOX. APPLICATION IILB D OUT. 20, 1903.

'j- WITNESSES: I

N0 MODEL.

THE Nonms PETERS co. worourwon WASHINGTON, u. c.

I ?ATENTED'MAY -2-4,1904.

J. J. MARRS. MITER BOX. APPLICATION FILED OUT. 20, 1903.

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A TTOHNE UNIT D. STATES Patented. May 24, 1904.

PATENT I OFFICE.

MlTER-BOX.

SPECIFICATION forming part of Letters Patent No. 760,892, dated May 24, 1904.

Application filed October 20, 1903.

To all whom it may concern:

Be it known that I, JOHN J AMES l\/lARRS, a citizen of the United States, and a resident of Harrison, in the county of Boone and State of Arkansas, have invented a new and Improved Miter-Box, of which the following is a full, clear, and exact description.

The invention relates to wood-sawing; and its object is to provide a new and improved miter-box adapted to be adjusted to allow the user to accurately produce on the side or face of the timber orother work a cut of any desired angle.

The invention consists of novel features and parts and combinations of the same, as will be 'morefully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corre: sponding parts in all the Views.

Figure 1 is a perspective view of the improvement as applied. Fig. 2 is a front face view of the improvement. Fig. 3 is a rear face view of thesame. Fig. 4: is an edge view of the improvement folded up. Fig. 5 is a longitudinal sectional elevation of the improvement on the line 5 5of Fig. 2, Fig. 6 is a face view of the saw-guide carrier and the saw-guide. Fig. 7 is a perspective View of the adjusted pointer and locking device for the graduated plate on the work-guide. Fig. Sis a perspective view of a portion of the work-. guide, showing the guide-bar folded up; and Fig. 9 is a similar view of the same, showing the guide-bar in an extended position.

The work-guide A in the form of a plate is adapted to rest on one side or face of the timher or other work B, and the said work-guide A is provided with fixed and raised side bars A, on the outside of which are held crankarms A supporting guide-bars A adapted to abut against the side of the work B adjacent to the side on which the workguide A is placed, as plainly indicated in Fig. 1.

On the forward end of the work-guide A is mounted to turn horizontally a graduated eletefia-e eeeetefi withasern a see uiee aa are. iietqtne miasulee es42.1

Serial No. 177.752. (N0 model.)

guide carrier D up and down, and as the plate 0 is mounted to turn horizontally the sawguide carrier can also be moved into sidewise position relative to the work-guide, as indicated in Fig. 1. The hinge Eis so arranged that the saw-guide carrier D and the saw-guide F held thereon can be readily swung into a folded position onto the work guide A, as plainly indicated in Fig. 4, to fold the device into a comparativelysmall space for packing and transportation. .The saw-guide F is provided with a suitable slot for the reception of a saw G to guide the latter while making the cut in the work B, as illustrated in Fig. 1. The saw-guide F is made in the shape of longitudinal bars connected with each other by transverse pins, and thesaid longitudinal bars are secured on a pivot-plate F, fitting against the under side of the saw-guide'carrier D and having its ,pivot F. mounted to slide longitudinally in a 'guideway D, formed lengthwise on the sawguide carrier D, as plainly illustrated in Figs. I

5 and 6. By the arrangement described the saw-guide F can be turned on the saw-guide carrier D, and it can also be adjusted lengthwise thereon to suit different conditions.

In order to set the saw-guide carrier D and its saw-guide F to a desired angular position relative to the work-guide A, the following device is provided: The plate 0 is .provided on its face with a degree graduation O, on which indicates a pointer H, adapted to engage one of a series of notches G formed in the peripheral edge of the plate 0, the notches cor responding to each five degrees indicated on the graduation O. The pointer H when engaging one of the notches 0 holds the plate 0 in the locked position, at the same time indicating the degree to which the saw-guide carrler D and saw-guide F are set relative to the work-guide A. The pointer H is fixed on a gear-segment H, mounted to slide transversely on a plate H and the said gear-segment H is in mesh with a pinion on the fulcrum end of a pointer H indicating on a graduation H, formed on the top of the plate 7 H The plate H is mounted to slide lengths on thetop et l wen asade Ma ma aspa e; ease e iteten agements a notch C and in order to impart this longitudinal movement to the plate H a cam-lever H is provided, fulcrumed on the workguide A and adapted to engage the peripheral edge of the plate H or an angular shoulder H, formed on an extension of the plate H (See Figs. 2, 5, and 7 When the camlever H is in the position shown in Fig. 2, the pointer H engages the Zero-notch C of the plate C to hold the plate C, and consequently the saw-guide carrier, in longitudinal alinement with the workguide A. When the cam-lever H is swung over from the left to the right, then the plate H is moved outward to disengage the pointer H from the zero-notch C and the operator can now turn the plate C to swing the saw-guide carrier D into a sidewise angular position relative to the work-guide A. When the desired position has been reached and the cam-lever H is swung over to its former position to engage the pointer H with the corresponding notch, the pointer indicates the degree of the angle to which the saw-guide carrier has been set relative to the work-guide A.

In order to accurately indicate a subdivision of the five degrees given on the scale C, the pointer H is used, indicating the desired subdivision on the graduation H when the plate C is turned after the pointer H engages the nearest angle to a multiple of five.

In order to indicate the angle the saw-guide carrier D is set when swung up and down relative to the work-guide A, the following device is provided: On the outer face of the sawguide carrier D is mounted to turn a disk I, having a graduation representing degrees, indicated by a pointer I, fixed on the saw-guide carrier D. 0n the disk I and turning with the same is secured a spiral gear-wheel J in mesh with a spiral rack J, mounted to slide lengthwise in a suitable guideway J fixed to the saw-guide carrier D. The rack J is pivotally connected by a link J 3 with a lug C on the plate 0, so that when the saw-guide carrier D is swung up or down on the hinge E then a sliding movement is-given by the link J to the rack J, which rotates the spiral gear-wheel J and the graduated plate I correspondingly for the pointer I to indicate the degree of the angle between the saw-guide carrier D and the work-guide A. A clamping-plate K, held on the saw-guide carrier 1),

is adapted to clamp the plate I in position by the use of a suitable cam-lever K, as indicated in the drawings." The guideway J is provided with a graduation J representing five degrees each and on which indicates a mark J 5 on the rack J. A cover D is preferably placed over the rack-teeth and the spiral gear-wheel J, so as to protect the same against sawdust and the like.

In the outer end of the saw-guide carrier D is arranged a spirit-level L, the frame of which is mounted to turn on a pivot L, so as to set square off from the work.

the spirit-level at a desired angle relative to the face of the saw-guide carrier D.

In using the device the operator swings the corresponding guide-bar A into a downward position, so as to properly hold the work-guide A in position on the work B, and the sawguide carrier D is then swung up or down into the desired position or turned sidewise, according to the nature of the cut to be made on the work B, it being understood that the saw (l, engaging the saw-guide F, stands in the same plane as the saw-guide carrier D, and hence the cut produced corresponds to the degrees indicated on the graduated plates C and I. For cutting ofi' one end of the work at right angles the plate C is moved to zero position relative to the pointer H, and then the saw-guide carrier D is swung upward until the pointer 1 indicates at Zero on the graduation of the plate I. The saw is now inserted in the sawguide F, and the cut is made to cut a piece \Vhen it is desired to make a miter or forty-five-degrce cut, the operator unlocks the plateC by manipulating the cam-lever H and then turns the plate C until the pointer H stands at forty-live degrees either to the right or to the left, according to the direction in which the miter-cut is to be made. When the forty-live-degrce position has been reached, the pointer H is engaged with the corresponding notch at the forty-five-degree mark by manipulating the cam-lever H correspondingly, and then the saw-guide carrier D is moved into a right-angular position, with the pointer I indicating zero on the plate I, and then the saw is inserted in the saw-guide and the cut made. In order to make a miter-cut of, say, forty-live degrees, then the plate C is kept in the position mentioned, while the saw-guide carrier 1) is swung downward until the pointer 1 indicates on the revolving plate I at the forty-five-degree mark of the scale on the said plate I, it being understood that the latter turns by the connection described when the saw-guide carrier D is swung downward, as mentioned. When the desired position has been reached, the plate I is locked in place by the clampingarm K, and then the saw is inserted and the cut is made, as indicated in Fig. 1.

It is understood that the miter-box may he used for other purposes. For instance, the parts may be set in such a position that the cut made by the saw represents the side of a polygonal figure or the like.

- Having thus described my invention, 1 claim as new and desire to secure by Letters Patent 1. A miter-box, comprisinga work-guide, a saw-guide carrier, a connection between the work-guide and the saw-guide carrier for permitting the latter to swing up and down and turn sidewise relative to the work-guide, a saw-guide carried by the carrier and ad justable thereon longitudinally and laterally, and means for indicating the positions of the sawguide carrier relative to the Work-guide, as set forth. I I

2. A miter-box, comprising a work-guide, a saw-guide carrier, a connection between the work-guide and saw-guide carrier for permitting the latter to swing up and down and turn sidewise, a saw-guide carried by the said car-' rier and adjustable thereon longitudinally and transversely, means for indicating the side- Wise position of the saw-guide carrier relative to the work-guide, and means controlled by swinging of the saw-guide carrier up and down for indicating the angle between the latter and the workeguide, as set forth.

3. A miter-box, comprising a work-guide, a plate mounted to turn on the work-guide, a saw-guide hinged to said plate, and 'a sawguide mounted to turn and slide longitudinally on theesaid carrier, as set forth.

4:. A miter-box comprising awork-guide, a saw-guide carrier, a graduated plate mounted to turn on the said work-guide, a hinge con necting the said graduated plate with the said saw-guide carrier, apointer for indicating on the said plate and for locking the same against movement, a graduated plate on the said sawguide carrier, and a connection between the graduated plate on the saw-guide carrier and the graduated plate on the work-guide, for operating the graduated plate on the saw-guide carrier-when the said carrier is swung up or down, as set forth. V

5. A miter-box comprising a work-guide, a saw-guide carrier, a graduated plate mounted to turn'on the said work-guide, a hinge connecting the said graduated plate with the said saw-guide carrier, a pointer for indicating on the said plate and for locking the same against movement, and a graduated plate on the said saw-guide carrier, having a connection with the graduated plate on the work-guide, the said connection comprising a splral gear- Wheel, a spiral rack mounted to slide on the saw-guide carrier and a link connecting the said rack with the graduated plate on vthe work-guide, .as set forth. V 6. A miter-box comprising a work-guide, a saw-guide carrier, a graduated plate mounted to turn on the said Work-guide and having notches in its peripheral surface, corresponding to the degrees marked on the face of'the plate, a hinge connecting the said saw-guide carrier with thesaid plate, a pointer-adapted to engage the said notches, a graduated plate mounted to slide lengthwise on the said workguide, a transversely-sliding member carrying the pointer, and a pointer on the longitudinallysliding plate and operatively connected with the sliding member, as set forth.

7. A miter-box comprisinga work-guide, a saw-guide carrier, a graduated plate mounted to turn on the said work-guide and having notches 1n its perlpheral surface, corresponding to the degrees marked on the face of the plate, a hinge connecting the said saw-guide carrier with the said plate, a pointer adapted to engage the said notches, a gear-segment carrying the said pointer, a plate mounted to slide lengthwise on the said work-guide and carrying the. said gear-segment, and a pointer mounted to turn on the said plate and having a pinion on its pivotal end, for engaging the said gear-segment, the pointer indicating on a graduation on the said slidable plate, as set forth.

8. Amiter-boX comprising a work-guide, a saw-guide carrier, a connection between the work-guide and the said saw-guide carrier,

for the latter to swing up. and down and turn sidewise, and a level mounted to swing in the said saw-guide carrier, as set forth.

9. .A miter-box comprising a work-guide, a saw-guide carrier, a connection between the said work-guide and the said saw-guide carrier, a saw-guide provided with a disk, and a pivot for the said disk, mounted to slide 11. In a miter-box, a Work-guide, a plate mounted to turn on the work-guide, means for locking the plate in position, a saw-guide carrier hinged to the said plate, a graduated plate to turn on the saw guide carrier, a pointer for indicating on the graduated plate, a rack and gear for operating the graduated plate, and a connection between the rack and the plate of the work-guide, as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

7 JOHN JAMES MARRS. Witnesses:

J. E. ANDREWS, JNo. A. BUNCH. 

